In a mansion on the outskirts of Seoul lives one of South Korea's richest families. Although nominally headed by a prominent businessman, it's his wife Madame Baek who's really in control. Her personal secretary, a handsome young man newly introduced to the world of power, deals with the family's immoral-and frequently illegal-activities while he waits for his own opportunity to make it rich. But everything changes when an affair upsets the household's balance of power, and an unexpected arrest threatens to expose the family's tawdriest secrets.